the sora & yellow-billed cuckoo are significantly smaller than the other
predominant prey species. having no idea of the habitat (tho clearly marshy
areas close by, but presumably also shrub edge), I won't speculate on
relative population densities, but it was interesting to note that the prey
identified included only one starling (82 grams), which one would expect
would be relatively common in the habitat, and 1/3 larger than the cuckoo.
I did not look up weights for the many other species that were only 1s & 2s,
but the robin (77 grams, same weight as the cuckoo) would, I expect, be more
common than the cuckoo.

certainly not the prey distribution this amateur would have expected. [all
weights from Sibley, convenient beside my laptop]